@article{UZMU_1954_165_165_a2,
     author = {A. D. Gorbunov},
     title = {Some questions of the qualitative theory of ordinary linear homogeneous differential equations with variable coefficients},
     journal = {Uchenye Zapiski Moskovskogo Gosudarstvennogo Universiteta},
     pages = {39--78},
     publisher = {mathdoc},
     volume = {165},
     number = {165},
     year = {1954},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZMU_1954_165_165_a2/}
}